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Next-to-leading-power kinematic corrections to DVCS: a scalar target

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arxiv 2211.04902 v1 pith:VTPULP4G submitted 2022-11-09 hep-ph

V. M. Braun , Yao Ji , A. N. Manashov This is my paper
classification hep-ph
keywords correctionsdvcskinematictargetleadingmassaccuracyamplitudes
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

Using the recent results on the contributions of descendants of the leading twist operators to the operator product expansion of two electromagnetic currents we derive explicit expressions for the kinematic finite-$t$ and target mass corrections to the DVCS helicity amplitudes to the $1/Q^4$ power accuracy. The cancellation of IR divergences for kinematic corrections is demonstrated to all powers in the leading order of perturbation theory. We also argue that target mass corrections in the coherent DVCS from nuclei are small and do not invalidate the factorization theorem.

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Cited by 6 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Finite-$t$ and target mass corrections for the short-distance expansion of quasi(pseudo) GPDs

    hep-ph 2026-06 unverdicted novelty 6.0 of 10

    Derives t/P_z² and m_N²/P_z² kinematic corrections to the short-distance expansion of quasi-GPD matrix elements for lattice QCD applications.

  2. Coherent deeply virtual Compton scattering on helium-4 beyond leading power

    hep-ph 2026-04 unverdicted novelty 6.0 of 10

    Computes kinematic twist-3, twist-4 and NLO alpha_s corrections to coherent DVCS on He-4 and extracts the first 3D quark-gluon tomography of the nucleus.

  3. Constraining DVCS Compton Form Factors Using Lattice QCD informed Neural Network

    hep-ph 2026-06 unverdicted novelty 5.0 of 10

    A neural network framework informed by lattice QCD uses all-order dispersion relations to significantly constrain both real and imaginary parts of Compton Form Factors extracted from DVCS proton data.

  4. Coherent deeply virtual Compton scattering on helium-4 beyond leading power

    hep-ph 2026-04 unverdicted novelty 5.0 of 10

    Higher-twist and NLO corrections to DVCS on He-4 enable the first 3D parton-level tomography of the helium-4 nucleus.

  5. Assessing the impact of the electron ion collider in China on Deeply Virtual Compton Scattering

    hep-ph 2025-12 conditional novelty 5.0 of 10

    Projected EicC DVCS asymmetry data would substantially reduce uncertainties on all leading-order Compton form factors, most strongly in the sea-quark region.

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